Stadium: Court 1 Round: 26 Ground: Hardcourt outdoor
| Gatineau, Canada | 2018/07/16 16:40 | Klahn, Bradley v Mousley, Bradley | 7-5,7-6 |
| Wimbledon, London, Great Britain | 2018/07/05 16:20 | Kyle Edmund v Klahn, Bradley | 6-4,7-6,6-2 |
| Wimbledon, London, Great Britain | 2018/07/03 12:15 | Sugita, Yuichi v Klahn, Bradley | 6-2,6-7,2-6,2-6 |
| Wimbledon Qual | 2018/06/28 11:35 | Bolelli, Simone v Klahn, Bradley | 3-6,4-6,6-7 |
| Wimbledon Qual | 2018/06/26 16:20 | Klahn, Bradley v Antoine Hoang | 6-4,6-1 |
| Wimbledon Qual | 2018/06/25 14:05 | Klahn, Bradley v Ojeda Lara, Ricardo | 6-3,6-2 |
| Ilkley, Great Britain | 2018/06/19 14:00 | Tatsuma Ito v Klahn, Bradley | 6-4,6-7,6-3 |
| s-Hertogenbosch, Netherlands, Qualifying | 2018/06/09 10:05 | Max Purcell v Klahn, Bradley | 6-2,6-2 |
| Gatineau, Canada | 2018/07/17 20:55 | Yunseong Chung v Mitchell Krueger | 7-6,6-4 |
| Challenger Gatineau Qual | 2018/07/16 16:30 | Boulais, Justin v Yunseong Chung | 2-6,1-6 |
| Challenger Gatineau Qual | 2018/07/15 18:50 | Gomez, Alejandro v Yunseong Chung | 3-6,6-7 |
| Challenger Gatineau Qual | 2018/07/14 17:50 | Lu, Tyler v Yunseong Chung | 6-3,3-6,4-6 |
| Challenger Winnipeg | 2018/07/12 20:00 | Yunseong Chung v Soeda, Go | 2-6,6-2,4-6 |
| Challenger Winnipeg | 2018/07/10 18:20 | Volfson, David v Yunseong Chung | 3-6,3-6 |
| Challenger Winnipeg Qual | 2018/07/09 16:40 | Yunseong Chung v Lin, Jack Mingjie | 6-2,6-2 |
| Challenger Winnipeg Qual | 2018/07/08 21:50 | Yunseong Chung v Yshai Oliel | 6-3,6-1 |